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Finding the Fourth Proportional to 372,214.40, 513,630.60 and 202,444.88

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Solution

The fourth proportional to 372,214.40, 513,630.60 and 202,444.88 is: 279,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,214.40 : 513,630.60 = 202,444.88 : x
  2. Step 2: Convert to fraction form
    372,214.40/513,630.60 = 202,444.88/x
  3. Step 3: Cross multiply
    372,214.40x = 513,630.60 × 202,444.88
  4. Step 4: Simplify right side
    372,214.40x = 103,981,885,181.33
  5. Step 5: Solve for x
    x = 103,981,885,181.33/372,214.40
  6. Step 6: Final answer
    x = 279,360.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.